Answer:
One solar eclipse and one lunar eclipse each month
Explanation:
Solar eclipse are due to the moon in front of the sun before the earth, while lunar eclipse while lunar results when earth cast it shadow on a full moon.
Migration helps in improving the quality of life of people. It helps to improve social life of people as they learn about new culture, customs, and languages which helps to improve brotherhood among people. Migration of skilled workers leads to a greater economic growth of the region.
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Those geographic helped to protect the Roman Empire.
Answer:
It brings its characteristics to the region. This may change the areas temperature and humidity.